BK7252 Data Sheet v 1.0
© 2018 Beken Corporation Proprietary and Confidential Page 5 of 25
1. Introduction
BK7252 is a 2.4 GHz 802.11n and BLE
4.2 comb chip with audio peripheral
and image sensor interface. It
integrates hardware and software
component to finish a complete
802.11b/g/n audio and video
application, which supports AP and
STA role simultaneously, and
integrates Bluetooth low energy
transceiver and version 5.0 complaint
protocol stack. The high speed 32-bit
MCU and large embedded RAM make
it able to support multiple cloud links
and also suitable for audio and image
application。
BK7252 has flexible peripheral such as
PWM, I2S, I2C, UART, SPI, SDIO, USB
and IrDA. Up to six channel 32-bit
PWM outputs make it suitable for
precise LED control.
BK7252 has two channel high
performance audio DAC and one
channel audio ADC together with line
in interface.
BK7252 has I2S interface, which can
work as either master or slave. The
sample rate could be from 8 kHz to 48
kHz, and MCLK could be provided to
external audio CODEC.
BK7252 has 8-bit DVP to get image
data from CMOS sensor, which can be
encoded by internal VGA grade motion
JPEG codec. The integrated QSPI
interface supports FLASH and RAM
extension at the same time.
BK7252 provides transmit active and
receive active indicators through two
independent ports, to support external
PA and external LNA.
BK7252 has 32 bytes eFUSE for unique
ID, code encryption and debug
interface disable. The true random
number generator and hardware
AES/RSA/SHA support fast and security
communication.
BK7252 could work with either 4.2 V
battery or 5 V USB power supply.
There is a deep sleep mode with a few
micro-amp current, and could be wake
up by either GPIO activation or 32-bit
RTC time.
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